Stability Analysis of Cutting Slope Based on FLAC3D
[Purposes]The conditions of road cutting slope body,rainstorm and vehicle load have great in-fluence on the stability of cutting slope.In this study,zhanggou landslide in Huilong Village,Shangbali Town,Huixian City is taken as an example,to analyzes the deformation characteristics and stability of the landslide under the influence of different working conditions,so as to provide a basis for slope pre-vention.[Methods]The FLAC3D software was used to simulate the deformation and stability of the slope under natural and rainstorm conditions,and the FLAC3D built-in Fish function was called to simulate the dynamic load generated by the road vehicles before the cutting slope,and the deformation characteristics of the landslide body under the dynamic load were analyzed.[Findings]① The stability coefficient of the slope in natural and rainstorm conditions is 1.9 and 1.186 respectively;②When the peak dynamic load of the anterior slope highway increases from 1×105 N to 1×106 N,the horizontal maximum strain value at the slope foot increases by 13.4%,and the horizontal maximum strain value at the posterior edge increases by 13.2%.[Conclusions]The rainstorm reduces the strength of the rock and soil mass and di-rectly destroys the stability of the slope,and the vertical dynamic load before the slope increases the con-tinuity of the horizontal shear band,but the influence on the maximum stress variable of the slope body is small.
万方数据
